Permanent window screen



y 1932- E. KOHLSAAT PERMANENT wmnow SCREEN Filed Nov. 22. 1927 2 Sheets-Sheet 1 E/"wtJwklsaafim m v ATTORNEY May 17, 1932. E. KOHLSAAT 1,859,209

PERMANENT WINDOW SCREEN Filed Nov. 22, 192 2 Sheets-Sheet 2 ATTORNEY Patented May 17, 1932 PATENT ome nn vsr xonnsnnr, or PHILADELPHIA, PENNSYLVANIA PERMANENT WINDOW SCREEN Application filed November 22, 1927. Serial o. 235,049.

The present invention relates to the art of windows and screens therefor, it being obvious that all window screens heretofore are removable, therefore dispensed with during the winter months, necessitating storage space and installation for use during the summer months, there being a great deal of'inconvenience inboth instances, particularly when installed, it being necessary to remove a house-keeper to shake articles out of the window or to look out, hence it is the purpose of the present invention to provide what screen is always convenient and may or may a not be used, and when" the screen isto be used it may be moved into position through the simple act of raising or lowering the sashes, and when the screen is not to be used the sashesmay be lowered and raised and the screen detached, in Whichcase, the screening may be supported in storage above and below the window casement.

Another purpose is to provide means to permit either the upper screen or the lower screen to be detached from its respective sash to permit it to be moved independently of its screen.

It is to be understood that the particulars herein given are in no way limitive, and that while still keeping within the scope of the invention, any desired modification of details and proportions may be made in the construction of the appliance according to circumstances.

The invention comprises further features and'combination of parts to be hereinafter set forth, shown in the drawings and claimed.

In the drawings: j

Figure 1 is a view in elevation showing .the two sashes movedto their raised and lowered positions with the screens correspond the frame in section with the sashes correscreen carrying roller. 10 the screen in order to wash WlllClOWS or for ing to the positionsin which case the sashes are arranged at a point approximately the ure 2 showing the sashes lowered and "raised with the screens reeled within their housings.

vFigure 4-is a cross sectional view of Figure 2. i

, Figure 5 is an enlarged horizontal detailed sectional view through one side of the window frame at the lower end of the frame more clearly showing the clutch of the lower F igure 6 is an enlarged vertical sectional view through a wmdow showing. the upper ,and lower sashes a'nd'the upper and lower screen rollers, with the screens attached to the sashes and illustrating the sprocket chains for .the screen'rollers. f l

.Referring to the drawings, 1 identifies a frame which may beof a conventional construction, and housed in the, upper andilower parts thereof, 2 and 3, are rollers 4 and 5,

" rollers having pintles 6 j'ournaled in bearings of the frame of the window.

Upper and lower screens 7 and 8 are attachedto the rollers and are wound thereabout. 1 y i Mounted in the Window frame for raising and lowering movements are lower'and upper sashes 9 and 10 and attached to said sashes as at llare cords 12 and 13, which are engaged over'pulleys 14 and 15and are provided withweights 16a.

The upper part of the frame of the window is provided with a' slot 16 through which the upper screen 7 (which is woundaround the roller 4 and attached thereto) passes. This ,screen 7 at its lower end, that is its end porof a strip 18. The upper rail 19 of the upper sash 10 has'a plate orstrip 20 attached by screws 21. This strip or plate20 has a downturned flange 22 with which the channel bar 17 0f the screen 7 engages, so that the unwinding end portion of the upper'screen may beattached to the upper sash, so thatwhen the upper sash is lowered the upper screen may be lowered therewith,

It is possible to partiallylower the upper sash, detach thechannel strip 17 from the downturned flange 22 of the plate '20,"in

the roller;

which case the channel strip may be allowed to rest against a shoulder 23 of the slot 16.

The lower screen 8 has attached to an unwinding portion by means of a strip 24, a channel strip 25, which over-engages a flange 26 of a plate 27, which is attached by screws or the like 28 to the lower rail of the lower sash 9 of the window.

It is possible to raise the lower sash 9, detach the channel strip from the flange 26 of the plate 27, allowing the channel strip to engage or rest back in an off-set cavity 29 of a slot 30 in the lower part of the Era-me of the window, so that the lower sash may,

be raised without moving the lower screen '8, In other words it is possible to detach the upper screen 7 and lower the upper sash independently or the lower screen 8 may be detached and the lower sash raised independently. V I

When the lower screen 8 is detachedit is accomplished by disengaging the channel strip 25 from the flange 26 of the plate 27 in which case the channel strip 25 rests against a shoulder 31 of the off-set cavity 29 of the slot 30.

The left hand end of the roller 5 about which the lower screen 8 winds is provided with a sprocket .32about' which a sprocket chain 33 engages and to one side of the sprocket32 a clutch member .34 is provided, there being a clutch member 35011 the spindle of the lower-rol1er5 to engage with the clutch member 34 so as to cause the clutch member which isloosely mounted on the spindle of the lower roller '5, to rotate with The clutch member 35 has an extension sleeve provided with a groove 37 with which the forks 38" of a. lever 39 engage. Thelever 39'Fis pivoted at 40 to supports 41,

so that movement of the leverv 39in one direction will move the clutch member 35 to engage with the clutch member 34, whereby the lower sash may be raised or lowered.

The upper roller has asprocket 42 mounted upon its pintle, and passing about the sprocket 42 is a sprocket chain 43, and which also passes about a sprocket 44, which is mounted midwaythe height of a window frame, the

sprocket chain 33 passing about a similar sprocket 45 likewise mid-way the height of a window frame.

Carried' by thesprocket 42 isa clutch 46 with the teeth of which a clutch 47 engages.

The clutch" 47 has engaged therewith a clutch member 48, with a groove of which the forks of a lever 49 cooperates, so that by tilting said lever upon its pivot .50, the

clutch member may engage with the teeth of-the sprocket. V

The clutch lever 49 may .be ,moved in one. direction to disengage its clutch from the qsprocket of the upper roller 4, and when the clutch lever 49 ismojvyed in the opposite dithe members and into the sashes.

rection its clutch may engage with the clutch of the upper roller 4.

The levers 39 and 49 are pivoted at 40 and 50, and the free end of said levers 39 and 49 are operative in slots 51 and 52, which are L-shaped. By means of these slots 51 and 52 the levers 39 and 49 are held in different positions to hold the, clutches in and out of engagement with the clutches of the rollers 4 and 5.

By means of-the sprocket chain 33 and 43 the rollers are operated evenly. In other words whenthe upper sash is lowered the upper screen unreels from the roller 4, and when the lower sash is raised, the lower screen is correspondingly moved. I

Pivotally carried by the lower and upper sashes 9 and. 10 are triangular Inembersf53 and .54 which have'projections .55 for engagement with the chains 33 and 43, so'that thesashes may move with the chains, when the sashes are operative, that is when the angle members .53 and 54Yare tilted in the desired directions to attain this result. Said angle members are disengaged from the sprocket chains, when the screens 8 and 7 are disengaged from the upper and lower sashes, so

that the sashes may be'raised and lowered independently, that is without moving the screens, the screens remaining in storage jections 55 of the members 53 ,and .54 in engagement with the sprocket chains. In other words the pins 53?) and 54b pass through is desired to move the sashes without operating the screens, which have been previously detached from the sashes, the pins 536 and 547) may be removed and the members 53 and .54 tilted, disconnecting the members from the chains. By moving the clutch members ,35 and '47, it ispos'sible, to leave the spockets 32 and 42 and their chains idle. In order tomove the clutch members 35 and 47., the levers 39 and 49 are tilted in, their proper direction.

The invention having been set forth, what is claimed is: V p r In a window structure having ,a sash and an angle plate secured to the lower edge of the sash, a roller mounted in the sill'of the ,window frame and having a screen connected thereto and reeled. thereabout, a sprocket When it loose upon one end of the roller, an idler sprocket mounted in the frame, a chain passing about the idler sprocket and theloose sprocketand provided with detachablecon ture.

ERNST KOHLSAAT. 

